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OpenAdvisories
Medium · 5.3 Public exploit CVE-2026-94545 EUVD-2026-89994GHSA-wx4j-mvgx-mqwp

Satori-generated SVG has improper escaping

Published Sep 30, 2026 · Updated Sep 30, 2026 · Assigned by GitHub_M

Vendor: vercel Product: next Product: satori Package: satori Ecosystem: npm

Description

Satori is a library to convert HTML and CSS to SVG. Starting in version 0.0.27 and prior to version 0.33.5, Satori does not properly escape certain values before including them in generated SVG output. This can allow crafted values to be interpreted as SVG markup. The impact depends on how the generated SVG is consumed. Version 0.33.5 contains a patch. No complete workaround exists besides upgrading. Applications that cannot immediately upgrade should not render attacker-controlled content with Satori.

Affected products

VendorProductAffectedFixed
vercel satori >= 0.0.27, < 0.33.5 —
vercel next >= 16.2.0, < 16.3.6 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 3 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Affected packages

EcosystemPackageAffectedFixedRecord
npm satori >= 0.0.27, < 0.33.5 0.33.5 GHSA-wx4j-mvgx-mqwp

Advisories 1

References